EP0307394B1 - Belt conveyor with discharge pulley - Google Patents

Belt conveyor with discharge pulley Download PDF

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Publication number
EP0307394B1
EP0307394B1 EP87902087A EP87902087A EP0307394B1 EP 0307394 B1 EP0307394 B1 EP 0307394B1 EP 87902087 A EP87902087 A EP 87902087A EP 87902087 A EP87902087 A EP 87902087A EP 0307394 B1 EP0307394 B1 EP 0307394B1
Authority
EP
European Patent Office
Prior art keywords
belt
support
conveyor
seen
belt conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87902087A
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German (de)
French (fr)
Other versions
EP0307394A1 (en
Inventor
Helmut Mohr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O&K Orenstein and Koppel GmbH
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O&K Orenstein and Koppel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE3615769 priority Critical
Priority to DE3615769A priority patent/DE3615769C1/en
Application filed by O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Priority claimed from AT87902087T external-priority patent/AT64726T/en
Publication of EP0307394A1 publication Critical patent/EP0307394A1/en
Application granted granted Critical
Publication of EP0307394B1 publication Critical patent/EP0307394B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/10Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
    • B65G21/14Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of length or configuration of load-carrier or traction element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10Arrangements of rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34Devices for discharging articles or materials from conveyor 
    • B65G47/44Arrangements or applications of hoppers or chutes

Abstract

Belt conveyor with discharge pulley or return pulley in which a vertically adjustable support roller (snub) pully is arranged upstream of the return pulley, seen in the direction of movement of the belt, in order to adjust the parabola of fall.

Description

  • Die Erfindung betrifft eine Förderbandanlage zur Verstellung der Fallparabel des Fördergutes, umfassend eine, an einem Förderbandträger angebrachte Umlenktrommel und eine, in Bandlaufrichtung gesehen, die Neigung des Bandendes bestimmende, höhenverstellbare Ablenktrommel, die beiderseitig an Schwenkhebeln gelabert ist.The invention relates to a conveyor belt system for adjusting the falling parabola of the material to be conveyed, comprising a deflection drum attached to a conveyor belt carrier and a height-adjustable deflection drum, seen in the direction of belt travel, determining the inclination of the belt end, which is mounted on swivel levers on both sides.
  • Bei bekannten Förderbandanlagen sind die Abwurftrommeln und die ihr unmittelbar vorgeschalteten Tragrollen am vorderen Ende des Bandträgers fest gelagert. Da weiterhin die Bandgeschwindigkeit der Förderbandanlage im allgemeinen festliegt, ist eine Anderung der Fallparabel während des Betriebs der Bandförderanlage praktisch nicht möglich. Die unveränderbare Fallparabel ist bei Bandanlagen, insbesondere bei der Förderung von klebrigem, staubigem oder zu Brückenbildung neigendem Fördergut, nachteilig.In known conveyor belt systems, the discharge drums and the support rollers directly upstream of them are permanently mounted at the front end of the belt carrier. Since the belt speed of the conveyor belt system is generally fixed, changing the falling parabola during operation of the belt conveyor system is practically impossible. The unchangeable falling parabola is disadvantageous in belt systems, particularly when conveying sticky, dusty or bridging material.
  • Die DE-B 11 12 010 zeigt ein Bandschleifengerät zum Abwerfen des Gutes von Bandstraßen mit einem die Bandschleife tragenden Gerüst, das auf einem beweglichen Untergestell ruht. Dabei wirkt die Umlenktrommel bei der Verwendung als Bandschleifenwagen als Abwurftrommel. In Förderrichtung gesehen, liegt hinter der Abwurftrommel eine Schleifentrommel, die die Rückführung des Gurtes in die übliche Schleifenform besorgt. Soll die Umlenktrommel nicht mehr als Abwurftrommel wirksam sein, muß die Schleifentrommel entfernt werden. Dann läuft das Förderband in einem Zuge über die nunmehr absenkbare Umlenktrommel in normaler Bandführung weiter. Dabei ist die Umlenktrommel, die zeitweise als Abwurftrommel wirken kann, am Ende eines schwenkbar angelenkten Kopfstückes des Bandträgers gelagert. Das Kopfstück ist mittels Bolzen an dem Bandschleifengerüst befestigt und kann mit einer geeigneten Hubvorrichtung gesenkt und gehoben werden. Offenbar trägt das Kopfstück weitere Bolzen für die Abstützung des Förderbandes, die jedoch gegenüber dem Kopfstück in ihre Lage festliegen und nur gemeinsam mit diesen angehoben bzw. gesenkt werden können.DE-B 11 12 010 shows a belt loop device for throwing off the goods from belt streets with a frame supporting the belt loop, which rests on a movable underframe. The deflection drum acts as a discharge drum when used as a belt loop carriage. Seen in the direction of conveyance, behind the discharge drum is a loop drum, which ensures that the belt is returned to the usual loop shape. If the deflection drum is no longer effective as a discharge drum, the loop drum must be removed. Then the conveyor belt runs in one go over the now lowerable deflection drum in normal belt guidance. The deflection drum, which can temporarily act as a discharge drum, is mounted at the end of a pivotably articulated head piece of the belt carrier. The head piece is attached to the belt loop frame by means of bolts and can be lowered and raised with a suitable lifting device. Apparently, the head piece carries additional bolts for supporting the conveyor belt, which, however, are fixed in their position relative to the head piece and can only be raised or lowered together with them.
  • Die US-A 2,781,892 offenbart einen verhältnismäßig kurzen Bandförderer, auf welchem auf der einen Seite Material über eine Schurre aufgegeben wird, welches auf der anderen Seite durch das mit einer vorgegebenen Geschwindigkeit umlaufende Band abgeworfen wird. Zur Einstellung unterschiedlicher Abwurfwinkel ist mit gewissem Abstand zur Umlenkrolle oberhalb des Bandes eine zweiseitig gelagerte Druckrolle vorgesehen. Über Verstell- sowie Rückstellmechanismen besteht die Möglichkeit, das Band in Richtung des Untertrums zusammenzudrücken, wobei sich je nach Grad des Druckes eine entsprechende Neigung des Bandes in Richtung der Umlenkrolle ergibt. Nachteile dieser Ausgestaltung sind im wesentlichen darin begründet, daß die Druckrolle zweigeteilt it, wobei die beiden Teile mittels eines Verbindungselementes untereinander verbunden sind, wobei ausschließlich die beiden äußeren Bereiche der geteilten Druckrolle auf dem Förderband aufliegen. Da der Gurt üblicherweise flexibel ausgestaltet ist, werden die beiden auf den Gurträndern aufliegenden Druckrollenbereiche den Gurt zwar in diesen Bereichen nach unten drücken, der mittlere Bereich wird sich jedoch so gut wie kaum verformen und in Abhängigkeit vom Druck an der Verbindung zur Anlage kommen. Ein Materialtransport scheint somit ausgeschlossen bzw. in nur verhältnismäßig dünnen Schichten realisierbar.US-A 2,781,892 discloses a relatively short belt conveyor, on which material is fed in via a chute on one side, which material is dropped on the other side by the belt rotating at a predetermined speed. To set different discharge angles is at a certain distance from the pulley above the belt a two-sided pressure roller is provided. Adjusting and resetting mechanisms make it possible to compress the belt in the direction of the lower run, with a corresponding inclination of the belt in the direction of the deflection roller depending on the degree of pressure. Disadvantages of this configuration are essentially due to the fact that the pressure roller is divided into two, the two parts being connected to one another by means of a connecting element, with only the two outer regions of the divided pressure roller resting on the conveyor belt. Since the belt is usually designed to be flexible, the two pressure roller regions resting on the belt edges will press the belt downward in these regions, but the middle region will hardly deform and come into contact with the connection depending on the pressure. Material transport therefore appears to be impossible or only feasible in relatively thin layers.
  • Der Erfindung liegt ausgehend von der US-A 2,781,892 die Aufgabe zugrunde, mit einfachen Mitteln die Möglichkeit zu schaffen, die Fallparabel hinter einer Abwurftrommel einer Förderbandanlage während des Betriebes zu ändern, so daß die Fallparabel unterschiedlichen Fördergutarten angepaßt werden kann bzw. auf eine bestimmte Fallparabel eingestellt werden kann.The invention is based on the US-A 2,781,892 the task to create with simple means the possibility to change the falling parabola behind a discharge drum of a conveyor belt system during operation so that the falling parabola can be adapted to different types of material to be conveyed or to a specific falling parabola can be adjusted.
  • Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das endlose Förderband über die Ablenktrommel geführt ist, und die Schwenkhebel, entgegen der Bandförderrichtung gesehen, im Abstand vor der Umlenktrommel am Bandträger gelagert sind, wobei sich zwischen den freien Enden der Schwenkhebel und dem BandträgerHydraulikzylinder erstrecken, und daß, in Laufrichtung des Förderbandes gesehen, das vordere Ende des Tragrollenträgers mit sich auf den die Ablenktrommel tragenden Schwenkhebeln abstützenden Stützrollen versehen ist, und daß der Tragrollenträger an seinem anderen Ende gelenkig mit dem, in Laufrichtung des Förderbandes gesehen, davorliegenden Tragrollenträger bzw. mit dem Bandträger verbunden ist.This object is achieved in that the endless conveyor belt is guided over the deflecting drum, and the pivoting levers, viewed against the belt conveying direction, are mounted on the belt carrier at a distance in front of the deflecting drum, with hydraulic cylinders extending between the free ends of the pivoting lever and the belt carrier, and that, seen in the running direction of the conveyor belt, the front end of the idler roller is provided with support rollers supporting the pivoting levers carrying the deflection drum, and that the idler roller carrier at its other end is articulated with the idler roller carrier in front of it, seen in the direction of travel of the conveyor belt, or with the Band carrier is connected.
  • Bei der erfindungsgemäßen Vorrichtung kann _ in Förderrichtung gesehen, vor der Abwurftrommel _ die Neigung des Förderbandes vor dessen Auflaufen auf die Umlenktrommel verstellt und damit die Fallparabel eingestellt werden. Der Fordergurt wird je nach der einstellbaren Höhenlage der Ablenktrommel vor der Umlenk- bzw. Antriebstrommel in unterschiedlichem Maße nach unten geführt. Mit der Einstellbarkeit der Neigung des vor der Umlenktrommel abfallenden Gurtabschnittes kann die Fallparabel eingestellt werden. Dadurch kann die Fallparabel so gewählt werden, daß beispielsweise bei klebrigem Fördergut eien einwandfreie Fördergutübergabe erfolgt. Eine Brückenbildung im Bereich des abfallenden Gutes kann vermieden werden. Andererseits läßt sich auch bei der Förderung von staubigem Gut durch Einstellen der Fallparabel die Staubentwicklung vermindern. Insbesondere auch dieser Aufgabe dienen die weiteren Maßnahmen gemäß der Unteransprüche, bei der die Körperschallentwicklung durch eine elastische Lagerung des Bandträgers auf dem Bandgerüst auf ein Minimum reduziert wird.In the device according to the invention, viewed in the direction of conveyance, the inclination of the conveyor belt can be adjusted in front of the discharge drum before it hits the deflecting drum, and the falling parabola can thus be set. Depending on the adjustable height of the deflection drum in front of the deflection or drive drum, the conveyor belt is lowered to different degrees guided. With the adjustability of the inclination of the belt section falling in front of the deflection drum, the falling parabola can be adjusted. As a result, the falling parabola can be selected so that, for example in the case of sticky goods to be conveyed, there is a perfect transfer of the goods to be conveyed. Bridging in the area of the falling goods can be avoided. On the other hand, the dust development can also be reduced by setting the falling parabola when conveying dusty material. In particular, this task also serves the further measures according to the subclaims, in which the structure-borne noise is reduced to a minimum by an elastic mounting of the belt carrier on the belt frame.
  • Weitere Einzelheiten der Erfindung sind anhand des in der Zeichnung schematisch dargestellten Ausführungsbeispieles erläutert und zwar zeigen
    • Fig. 1 _ das Ende einer Bandstraße mit Abwurftrommel in Seitenansicht
    • Fig. 2 _ einen Schnitt in der Ebene A-A
    • Fig. 3 _ einen Schnitt in der Ebene B-B
    Further details of the invention are explained with reference to the embodiment shown schematically in the drawing and show
    • Fig. 1 _ the end of a belt line with discharge drum in side view
    • Fig. 2 _ a section in the plane AA
    • Fig. 3 _ a section in the plane BB
  • Auf dem Bandfundament 1 ist das vordere Ende des Bandträgers 2 abgestützt. Dazu trägt das Bandfundament 1 einem an seinem vorderen Ende eine Stützbock 3 zur Lagerung einer Gelenkstütze 4, die sich auf ihrer anderen Seite in dem Stützbock 5 am Bandträger 2 abstützt.The front end of the tape carrier 2 is supported on the tape foundation 1. For this purpose, the band foundation 1 carries a support bracket 3 at its front end for mounting an articulated support 4, which is supported on the other side in the support frame 5 on the band carrier 2.
  • Desweiteren trägt das Bandfundament 1 einen Stützbock 6, der mit vier die Flächen einer Pyramide bildenden Stützflächen 7, 8, 9, 10 versehen ist.Furthermore, the band foundation 1 carries a support bracket 6, which is provided with four support surfaces 7, 8, 9, 10 forming the surfaces of a pyramid.
  • Diesen pyramidenförmig angeordneten Stützflächen 7, 8, 9, 10 liegen Gummipuffer 11, 12, 13, 14 an, auf denen sich ein ebenfalls als vierseitige Pyramide ausgebildeter Stützteil 15 eines weiteren Stützbockes 16 abstützt, der an dem Bandträger 2 befestigt ist.These pyramid-shaped support surfaces 7, 8, 9, 10 are supported by rubber buffers 11, 12, 13, 14, on which a support part 15 of another support bracket 16, which is also designed as a four-sided pyramid, is supported and is fastened to the belt carrier 2.
  • Der Bandträger 2 ist jeweils über zwei der bisher beschriebenen Stützvorrichtungen gegenüber dem Bandfundament 1 abgestützt, die beidseitig des Bandträgers 2 liegen.The tape carrier 2 is supported against the tape foundation 1 by two of the previously described support devices, which are located on both sides of the tape carrier 2.
  • Der Bandträger 2 trägt an seinem vorderen Ende die Antriebs- und Umlenktrommel 17, deren Lagerung und Antriebe im einzelnen nicht dargestellt sind. Über diese Umlenktrommel 17 ist das Förderband 18 geführt, das, in Förderrichtung gesehen, kurz vor der Umlenktrommel 17 von einer Ablenktrommel 19 unterstützt ist. Diese ist beidseitig in Schwenkhebeln 20 gelagert, die als Doppel- bzw. Winkelhebel ausgebildet sind. Diese Winkelhebel sind in weiteren Stützböcken 21 am Bandträger 2 gelagert und tragen mit ihrem anderen Hebelarm 22 unter oder über das Gerüst des Bandträgers 2 nach unten oder oben heraus. Dort sind an den Schwenkhebeln 20 in den Gelenkpunkten 23 Hydraulikzylinder 24 angelenkt, deren andere Seite bei 25 am Bandträger 2 angelenkt ist.The tape carrier 2 carries at its front end the drive and deflection drum 17, the storage and drives are not shown in detail. The conveyor belt 18 is guided over this deflection drum 17 and, viewed in the conveying direction, is supported by a deflection drum 19 just before the deflection drum 17. This is mounted on both sides in pivot levers 20, which are designed as double or angle levers. These angle levers are mounted in further support brackets 21 on the band carrier 2 and carry out with their other lever arm 22 below or above the frame of the band carrier 2 downwards or upwards. There, hydraulic cylinders 24 are articulated on the pivot levers 20 in the articulation points 23, the other side of which is articulated at 25 on the belt carrier 2.
  • Auf dem oberen Teil der Schwenkhebel 20 stützt sich auf den Ablaufflächen 26 der letzte Tragrollenträger 27 über Stützrollen 28 ab. Der letzte Tragrollenträger 27, der die Tragrollen 29 trägt, ist an seinem anderen Ende im Lager 30 an einem Stützbock 31 des Bandträgers 2 gelenkig abgestützt.On the upper part of the pivot lever 20, the last idler roller support 27 is supported on the run-off surfaces 26 by means of support rollers 28. The last idler roller carrier 27, which carries the idler rollers 29, is articulated at its other end in the bearing 30 on a support bracket 31 of the belt carrier 2.
  • Der Umlenktrommel 17 gegenüber befindet sich das Traggerüst 32 für das in unterschiedlichem Abstand von der Umlenktrommel 17 aufhängbare Prallblech 33. Das Prallblech ist in einer mittleren Stellung dargestellt.Opposite the deflection drum 17 is the supporting frame 32 for the baffle plate 33 which can be suspended at different distances from the deflection drum 17. The baffle plate is shown in a middle position.
  • Mit Hilfe des Hydraulikzylinders 24 können die beiden Schwenkhebel 20 gekippt werden, wodurch die Ablenktrommel 19 in unterschiedlicher Höhenstellung eingestellt werden kann, wie beispielsweise in gestrichelter Linienführung 19a angedeutet. Entsprechend der unterschiedlichen Höhe der Ablenktrommel 19 kann das unmittelbar vor der Umlenktrommel 17 befindliche Bandende 34 in unterschiedlichen Neigungen eingestellt werden, wie z.B. in der strichpunktierten Lage 34a. Entsprechend der unterschiedlichen Neigung dieser Bandteile ergeben sich unterschiedliche Fallparabeln 35, 35a etc.With the help of the hydraulic cylinder 24, the two swivel levers 20 can be tilted, as a result of which the deflection drum 19 can be set at different height positions, as indicated, for example, by dashed lines 19a. Depending on the different height of the deflection drum 19, the end of the band 34 located directly in front of the deflection drum 17 can be adjusted in different inclinations, e.g. in the dot-dash position 34a. Depending on the different inclination of these band parts, there are different drop parabolas 35, 35a etc.

Claims (6)

1. Belt conveyor arrangement for adjusting the fall parabola (35, 35a) of the goods being conveyed, comprising a return pulley (17) mounted on a conveyor belt support (2) and a deflecting pulley (19) which, seen in the direction of travel of the belt, determines the inclination of the end of the belt, is adjustable in height, and which is supported on both sides on pivoted levers (20), characterised in that the endless conveyor belt (18) is guided by way of the deflecting pulley (19), and the pivoted levers are supported on the belt support (2) at a distance in front of the return pulley (17), seen opposite to the conveying direction of the belt, hydraulic cylinders (24) extending between the free ends (22) of the pivoted levers and the belt support (2), and that, seen in the direction of travel of the conveyor belt (18), the front end of the carrying roller support (27) is provided with support rollers (28) bearing on the pivoted levers (20) carrying the deflecting pulley (19), and that the carrying roller support (27), at its other end, is hinged (30) onto the carrying roller support situated before it, seen in the direction of travel of the conveyor belt (18), or onto the belt support (2).
2. Belt conveyor arrangement according to Claim 1, characterised in that the pivoted levers (20) are connected to each other above or below the belt support (2) to form a double lever, with the free lever ends (22) of which the hydraulic cylinders (24) engage.
3. Belt conveyor arrangement according to Claims 1 and 2, characterised in that the belt support (2) is resiliently supported on a support block (16) both in the belt direction and also at right-angles thereto.
4. Belt conveyor arrangement according to Claims 1 to 3, characterised in that the support block (16) is provided with support surfaces (7, 8, 9, 10), the complementary bearing thereof being in each case in the form of a four-sided pyramid and arranged between components such as rubber cushions (11, 12, 13, 14).
5. Belt conveyor arrangement according to one of Claims 1 to 4, characterised in that the belt support (2) additionally bears on a belt conveyor base (1) by way of an articulated support (4) which, seen in the conveying direction of the belt, is arranged behind the resilient supporting arrangement.
6. Belt conveyor arrangement according to Claim 5, characterised in that the joints of the articulated support (4) are in the form of rubber bolt bearing means.
EP87902087A 1986-05-10 1987-04-04 Belt conveyor with discharge pulley Expired - Lifetime EP0307394B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3615769 1986-05-10
DE3615769A DE3615769C1 (en) 1986-05-10 1986-05-10 Conveyor belt system with discharge drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT87902087T AT64726T (en) 1986-05-10 1987-04-04 Conveying system with drop drum.

Publications (2)

Publication Number Publication Date
EP0307394A1 EP0307394A1 (en) 1989-03-22
EP0307394B1 true EP0307394B1 (en) 1991-06-26

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ID=6300549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87902087A Expired - Lifetime EP0307394B1 (en) 1986-05-10 1987-04-04 Belt conveyor with discharge pulley

Country Status (8)

Country Link
US (1) US4978000A (en)
EP (1) EP0307394B1 (en)
AU (1) AU592639B2 (en)
DE (2) DE3615769C1 (en)
DK (1) DK163117C (en)
ES (1) ES2003799A6 (en)
NO (1) NO162459C (en)
WO (1) WO1987006917A1 (en)

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CN105692066A (en) * 2016-01-28 2016-06-22 中国铁道科学研究院运输及经济研究所 Telescopic belt conveyor

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NO873613L (en) 1987-11-19
DK487987D0 (en) 1987-09-17
DE3771076D1 (en) 1991-08-01
AU7208887A (en) 1987-12-01
DK487987A (en) 1987-11-19
NO162459B (en) 1989-09-25
WO1987006917A1 (en) 1987-11-19
DK163117B (en) 1992-01-20
NO162459C (en) 1990-01-03
EP0307394A1 (en) 1989-03-22
NO873613D0 (en) 1987-08-27
DK163117C (en) 1992-06-22
ES2003799A6 (en) 1988-11-16
DE3615769C1 (en) 1987-05-27
AU592639B2 (en) 1990-01-18
US4978000A (en) 1990-12-18

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